Horticulturist by training, Usha S is working in the area of sustainable ecological agriculture for the last 3 decades . She has served as the Director, Agroecology and Food Security, National Coordinator of
Save Our Rice campaign ( A campaign to revive rice culture and food security in 7 states since 2004), National Steering committee member for Alliance for Sustainable and Holistic Agriculture ( ASHA) and Member of Director Board, Thirunelly Agri Producer Company (TAPCo), Wayanad.
She is also the founder member of Thanal, Trivandrum and has written several articles and booklets on environment and agriculture.